private void requestGpsPermission() {
        LogHelper.w(LocManager.TAG, "GPS permission is not granted. Requesting permission");
        final String[] permissions = new String[]{Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION};

        if (!ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.ACCESS_COARSE_LOCATION)) {